Application of Hierarchy Theory to Cross-Scale Hydrologic Modeling of Nutrient Loads

Liem Tran (), Robert O’Neill, Elizabeth Smith, Randall Bruins and Carol Harden

Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), 2013, vol. 27, issue 5, 1617 pages

Abstract: We describe a framework called Regional Hydrologic Modeling for Environmental Evaluation (RHyME 2 ) for hydrologic modeling across scales. Rooted from hierarchy theory, RHyME 2 acknowledges the rate-based hierarchical structure of hydrological systems. Operationally, hierarchical constraints are accounted for and explicitly described in models put together into RHyME 2 . We illustrate RHyME 2 with a two-module model to quantify annual nutrient loads in stream networks and watersheds at regional and subregional levels. High values of R 2 (>0.95) and the Nash–Sutcliffe model efficiency coefficient (>0.85) and a systematic connection between the two modules show that the hierarchy theory-based RHyME 2 framework can be used effectively for developing and connecting hydrologic models to analyze the dynamics of hydrologic systems. Copyright Springer Science+Business Media Dordrecht 2013

Keywords: Hierarchy theory; Dynamic regional hydrologic modeling; Annual nitrogen load; Water quality; Cross-scale analysis (search for similar items in EconPapers)
Date: 2013
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DOI: 10.1007/s11269-013-0260-0

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